package com.atguigu.service;

import com.atguigu.pojo.Member;

import java.util.List;

/**
 * @author Eric
 * @Create 2020-09-21  18:27
 * @Version project-workspace-0912
 **/
public interface MemberService {

    Member findByTelephone(String telephone);

    void add(Member member);

    List<Integer> findMemberCountByMonth(List<String> list);
}
